Waikato River Water Quality Monitoring Programme - Data Report 2020

Report: TR 2021/23

Author: Noel Bates

Abstract

The report provides information on:

1. Routine monthly monitoring of water quality at 12 sites:

• Year 2020 summary data tabulated by parameter for each location and reported with the median of the previous 5 years.
• Key parameter graphs showing the average water quality for 2020 at each location, compared to results of the previous 5 years.
• Summary tables identifying the number of samples meeting ‘satisfactory’ and ‘excellent’ water quality standards and guidelines.
• Raw data for 2020.

2. Additional information is provided in the appendices on:

• Flow (Appendix I).
  • The effect of flow is important to assessing water quality and making comparisons between years. Appendix I provides information on annual median flow at some locations for the previous 10 years.
• Continuous monitoring data via Datasonde (Appendix II).
  • Plots of the Hamilton and Tuakau deployments undertaken during 2020 showing the level of diurnal and seasonal variation of selected parameters.
• Water quality criteria (Appendix III)
  • Identifying the water quality parameters, guidelines, standards, and analytical methods used in the Waikato River water quality monitoring programme.